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LIBRARY 


UNIVERSITY  OF  CALIFORNIA. 


GIFT    OF 


v 

Class 


The   Mean   Ri^ht 
Ascensions  and   Proper  Motions 

of  254  Stars 


A  Thesis  Presented  to  the  Faculty  of  Philosophy  of  the 
mersitv  of  Pennsylvania 


H.    B.    EVANS 


in  Partial  Fullillment  t>t  ilie  Requirements  for  tlie 
Decree  "I   D  'hy 


The  Mean  Right 
Ascensions  and  Proper  Motions 

of  254  Stars 


A  Thesis  Presented  to  the  Faculty  of  Philosophy  of  the 
University  of  Pennsylvania 


BY 


H.    B.    EVANS 


In  Partial  Fulfillment  of  the  Requirements  for  the 
Degree  of  Doctor  of  Philosophy 


Mean  Right  Ascensions  and   Proper  Motions  of  254  Stars. 


INTRODUCTION. 

The  object  of  the  present  discussion  is  primarily  the  derivation  from  all  available 
data  of  definitive  values  of  the  Right  Ascensions  and  Proper  Motions  of  254  stars. 
These  stars  constitute  the  star  list  used  by  Professor  C.  L.  Doolittle  in  the  investigation 
of  the  variation  of  latitude  at  the  Sayre  Observatory  of  Lehigh  University  in  the  years 
187G  to  1893  inclusive.  For  use  in  the  final  discussion  of  these  observations  the 
Declinations  have  been  investigated  by  Professor  Doolittle.  It  is  hoped  that  the  results 
of  the  latter  discussion  may  prove  valuable  in  lines  of  investigation  other  than  that  for 
which  it  has  been  executed.  With  this  end  in  view,  the  Right  Ascensions  have  here 
been  reduced  according  to  the  same  method,  and  it  is  hoped  with  the  same  care  and 
thoroughness,  as  in  the  case  of  the  Declinations.  For  the  sake  of  completeness,  and 
with  the  permission  of  Professor  Doolittle,  the  Declination  data  and  results  are  given 
with  those  of  the  Right  Ascensions. 


Authorities. 

In  the  list  of  catalogues  employed  it  is  not  thought  necessary  to  give  more  than  the 
names  of  those  which  are  generally  well  known.  The  works  themselves  should  be  found 
in  every  astronomical  library.  In  case  they  are  not  readily  accessible,  further  informa- 
tion regarding  them  may  be  obtained  from  Newcomb's  New  Catalogue  of  Fundamental 
Stars,  Davis'  Declinations  and  Proper  Motions  of  Fifty-six  Stars,  and  Boss'  Declinations 
of  Fixed  Stars. 

In  case  of  all  catalogues  for  which  Auwers  gives  systematic  corrections,  these  have 
been  applied.  In  other  cases  such  corrections  have  been  derived  indirectly  through  the 
systems  of  Newcomb  or  Boss.  Where  recourse  has  been  had  to  other  methods,  mention 
of  the  process  is  found  in  the  accompanying  notes.  In  some  of  the  recent  catalogues  the 
uncorrected  places  have  been  employed.  For  the  sake  of  completeness  and  uniformity, 


UNIVEKSITY   OF   PENNSYLVANIA. 

however,  such  corrections  have  been  applied  in  all  cases  where  they  were  available, 
although  it  would  seem  that  any  one  who  has  had  occasion  to  examine  somewhat  closely 
into  this  subject,  must  agree  with  Newcomb's  conclusion  that  the  correction  for  system- 
atic errors  has  in  recent  times  been  carried  too  far. 

As  the  Declinations  were  reduced  in  advance  of  the  Right  Ascensions,  a  number  of 
catalogues  became  available  for  the  latter  which  were  not  employed  for  the  former.  It  is 
also  to  be  observed  that  the  list  embraces  several  catalogues  which  give  one  coordinate 
only.  Where  the  name  is  followed  by  the  symbol  a,  the  catalogue  has  been  employed 
only  for  the  Right  Ascensions ;  when  followed  by  the  symbol  8,  only  for  the 
Declinations. 

In  the  explanatory  notes  s  designates  the  systematic  correction  in  Right  Ascension ; 
s'  designates  the  systematic  correction  in  Declination ;  p  designates  the  weight  of  the 
Right  Ascension  ;  p'  designates  the  weight  of  the  Declination  ;  t  the  mean  date  of  obser- 
vation. The  system  of  weights  employed  will  be  spoken  of  in  connection  with  the 
method  of  reduction. 

List  of  Catalogues. 

1.  BRADLEY.     1755.     Neue  Keduction  der  Bradley'schen  Beobachtungen  aus  den  Jahren   1750  bis  1762.     Von 

Arthur  Aimers.     St.  Petersburg,  1888. 

2.  MAYER.     1755.     Tobias  Mayer's  Sternverzeichniss  nach  den  Beobachtungen  auf  der  Gottinger  Sternwarte  in 

den  Jahren  1756  bis  1760.     Keu  bearbeitet  von  Arthur  Ainvers.     Leipzig,  1894. 

3.  FEDOHENKO'S  Lalande.     1790.     Positions  Moyenne  pour  1'Epoque  de  1790,0  des  Etoiles  Circumpolaire,  dont 

les  observations  ont  6l6  publiees  par  Je>6me  de  Lalande  dans  les  Mdnioires  del'Academie  de  Paris  de  1789  et 
1790.  Par  Ivan  Fedorenko.  St.  P6tersbourg,  1854.  s  =  $  (Abo  +  Bessel's  Bradley);  p  same  as  2  ;  t  from 
Histoire  Celeste. 

4.  LALANDE.     1800.     A  Catalogue  of  those  Stars  in  the  Histoire  Celeste  Franchise  of  J6rOme  de  Lalande  for 

which  tables  of  reduction  to  the  epoch  1800  have  been  published  by  Prof.  Schumacher.  Francis  Baily,  Esq. 
This  catalogue  was  used  for  a  few  stars  where  other  early  authorities  were  wanting  or  doubtful.  For  decli- 
nations the  places  were  taken  directly  from  Baily's  Catalogue,  p'  =  0.1.  For  right  ascensions  Von  Asten's 
tables  were  used,  p  same  as  2 ;  t  from  Histoire  Celeste. 

5.  BOSSERT  (a).     1800.     Supplement  a  1'Histoire  Celeste  de  Lalande.     Catalogue  de  3950  etoiles  ramene'es  a 

I'e'quinoxe  de  1800.     Par  M.  J.  Bossert.     Paris,  1892.    p  same  as  2. 

6.  D'AQELET.    1800.    Reduction  of  the  Observations  of  Fixed  Stars  made  by  Joseph  Lepaute  d'Agelet  at  Paris  in 

1783-1785,  with  a  catalogue  of  the  Corresponding  Mean  Places  referred  to  the  equinox  of  1800,0.  By  B.  A. 
Gould.  Washington,  1866. 

s  =  OM2. 

s'  =  Piazzi  —  1".42    0"  to  XIl". 

*'  =  Piazzi  +  1".22     XII"  to  XXIV". 

p  same  as  2. 

7.  PIAZZI.     1800.     Praocipuarum    stellarum  inerrautium    Positiones   Mediae    Ineunte  Saiculo  xix    ex    observa- 

tionibus  habitas  in  Specula  Panormitana  ab  anno  1792  ad  annum  1813.  Panormi,  1814.  t  from  original 
observations.  Right  ascensions  of  stars  north  of  65°  declination  not  used. 

8.  GROOMBRIDGE.     1810.     A  Catalogue  of  Circumpolar  Stars  deduced  from  the  observations  of  Stephen  Groom- 

bridge  at  Blackheath  Observatory.     Edited  by  George  Biddell  Airy,  Esq.     London,  1838. 


MEAN   BIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND    FIFTY-FOUR   STARS.  5 

9.     DOIIPAT  (</).     1SU.     F.   G.    \V.   Struve.     ohsu rvatloncs    Astronomicas   Institutas    in   Specula   Universitatis 
C.Tsareas  Dorpatcnsis,  Vol.  I. 

10.  DOKPAT  (a).     1815.     Catalogus  I. 

11.  KoKNiiiSBEKO  («).    1815.    Bcarbcitung  von  Itosscls  Beobachtungen  am  Dolloud'schen  Mittagsfornrohrc  iu  deu 

.luhrcu  1813-19     Von  Dr.  Fritz  Colin.     Konigsburg  Beobachtungeu,  39  Abthoilung.     «=0. 

12.  Wi:issi:-l!i>si:r.  ((!).     1825.     Bcsscl's  /one  observations  reduced  by  Maximillian  Weissc.    This  was  used  for  a 

few  declinations,  visually  those  for  which  early  determinations  were  wanting,    p  =  0.1. 
lit.     SCJMYI:KI>-(>EI,T/.EN  (a).     1828.     The  positions  were  taken  from  Carrington,  No.  43. 

O 

14.  A  no.     1830.      DLX,  Stellarum  Fixarum    I'ositiones   Media;    iueunte   anno  1830   ex  observatiouibus   Aboa; 

hubitas  deduxit.     Fredr.  Ouil.  Aug.  Argelander.     Helsingforsiic,  1835.     t  from  Davis,  Ast.  Journal,  No.  328. 

15.  PEARSON  (<*)•     1830.     Dr.  Pearson's  Catalogue  of  520  Stars  within  6°  North  and  South  of   the  Ecliptic. 

-Memoirs  R.  A.  S.,  Vol.  xv,  p.  97.     London,  1846.     p'  =  0  ;  0.1.    *'  —  0. 

16.  CAMIUUDOE.     1830.     Airy's  First  Cambridge  Catalogue.     Memoirs  R.  A.  S.,  Vol.  xi.     London,  1859. 

17.  FALLOWS  (a).     1830.     Results  of  Observations  made  by  the  Rev.  Fearon  Fallows  at  the  Royal  Observatory, 

Cape  of  Good  Hope,  in  the  Years  1829-31.     Memoirs  R.  A.  S.,  Vol.  six,  p.  1. 

18.  POND.     1830.     A  Catalogue  of  1112  Stars  from  Observations  at  Greenwich  from  1810  to  1833.     London,  1833. 

t  was  obtained  from  the  original  observations  in  Greenwich  Yearly  Results. 

19.  STKUVE.     1830.     Stellarum  Fixarum  imprimis  dnplicium  ct  multiplicium  pro  epocha  1830.     Petropoli,  1852. 

20.  WROTTKSLBY  (a).     1830.     A  Catalogue  of   the    Right    Ascensions  of   1318    Stars.     By  John   Wrottesley, 

Ksq.     Memoirs  R.  A.  S.,  Vol.  x. 

21.  MONTOJO  (a).     1835.     Mean  Positions  of  the  Stars  contained  in   "Mr.  Daily's  Address"  as  determined  at 

San  Fernando.     Memoirs  R.  A.  S.,  Vol.  xii,  p.  238. 

22.  MADRAS.    1835.     A  General  Catalogue  of  the  Principal  Fixed  Stars  from  Observations  made  at  the  Honorable 

East  India  Company's   Observatory  at  Madras  in   the    years    1830-43.     By  Thomas  Glanville   Taylor. 
Madras,  1844. 

23.  Rf'MKER.     1836.     Mittlere  Oerter  von  12,000  Fixsternen  fiir  den  Anfaug  von  1836,  abgeleitet  ans  deu  Beob- 

achtungen auf  der  Hamburger  Sternwarte  von  Carl  Riimkcr.     Hamburg,  1852. 

24.  KOJ.LEII  (a).     1838.     Extract  from  a  letter  from  M.  Marian  Koller,  Director  of  the  Observatory  at  Ivrems- 

miinster  ....  accompanying  a  Catalogue  of  208  Stars.     Memoirs  R.  A.  S.,  Vol.  xii,  p.  373. 

25.  ARMAGH.     1840.     Places  of  5345  Stars  observed  from  1828  to  1854  at  the  Armagh  Observatory.     By  Rev.  T. 

R.  Robinson.     Dublin,  1859. 

'Ji'i.  SAXTIM  (<J).  1840.  A  Catalogue  of  1677  Stars  included  between  the  Equator  and  Ten  Degrees  of  North 
Declination,  observed  at  the  Royal  Observatory  of  Padua.  By  Prof.  Giovanni  Sautini.  Memoirs  R.  A.  S., 
Vol.  xii,  p.  273.  p1  =  0  ;  O.I ;  0.2. 

27.  CAPE  of  Good  Hope.     1840.    The  Cape  Catalogue  of  Stars  deduced  from  observations  made  at  the  Royal 

Observatory,  Cape  of  Good  Hope,  1834  to  1840,  and  reduced  to  the  epoch  1840  under  the  superintendence  of 
E.  J.  Stone.     Cape  Town,  1878. 

28.  GILLISS  (a).    1840.    Catalogue  of  Twelve  Hundred  and  Forty-eight  Stars  observed  at  Washington  between 

October.  1838,  and  July,  1842.     Washington,  1846. 

29.  GREENWICH.     1840.     Catalogue  of  2156  Stars  formed  from  the  Observations  made  from  1836  to  1841  at  the 

Royal  Observatory,  Greenwich.     London,  1849. 

30.  OEI.TZEN'S  Argelander  (a).    1843.    Annalen  der  K.  K.  Sternwarte  in  Wien.    Bd.  i.    Wicn,  1851.   «  same  as 

Abo  ;  p  same  as  Riimker  ;  t  from  original  zones. 

31.  GREENWICH.     1845.     Catalogue  from  observations  from  1842  to  1847. 

82.  PARIS.  1845.  Catalogue  de  1'Observatoirc  do  Paris.  Etoiles  observe'es  aux  Instruments  Mfiridicns  de  1837  a 
1*53. 

33.  POULKOVA  (a).     18i5.     Etoiles  observ6es  occasionnellement.     St.  Pdtersbourg,  1S75. 

34.  RADCLIKFE.     1845.    The  Radcliffe  Catalogue  of  0317  Stars  chiefly  Circumpolar  reduced  to  the  Epoch  1845. 

Formed  from  the  Observations  made  at  the  Radcliffe  Observatory  under  the  Superintendence  of  Manuel 
John  Johnson.     Oxford,  1860. 


6  UNIVERSITY   OF   PENNSYLVANIA. 

35.  OUDEMANS  (<T).     1849.     Dissertatio  Astronomica  Inaugumlis  exhibens  Observationcs  O]>o  Instniincnti  Tran- 

sitarii  partabilis  institutas Lugdiui-Batavorum,  1852. 

36.  CAPE  OF  GOOD  HOPE.     1850.     Catalogue  of  4710  Stars   for  the  Epoch  1850,  from  Observations  made  at  the 

Royal  Observatory,  Cape  of  Good  Hope,  during  the  Years  1849  to  1852,  under  the  Direction  of  Sir  Thomas 
Maclear. 

37.  GILLISS.     1850.     A  Catalogue  of  1963  Stars  and  of  290  Double  Stars  observed  by  the  U.  S.  Naval  Astronomers 

during  the  Expedition  to  the  Southern  Hemisphere.     Appendix  i  to  Washington  Yearly  Observations  for 
1868. 

38.  GREENWICH.     1850.     Catalogue  of  1576  Stars  formed  from  Observations  made  during  Six  Years,  from  1848  to 

1853,  at  the  Royal  Observatory,  Greenwich. 

39.  MADRAS.      1850.     A  Subsidiary  Catalogue  of  1440  Stars  selected  from  the  British  Association  Catalogue, 

reduced  to  Jan.  1,  1850,  from  Observations  made  at  Madras  in  the  Years  1849-53.     Madras,  1854. 

40.  RtiMKER.     1850.     Neue  Folge  der  mittleren  Oerter  von  Fixstcrnen  fur  den  Aufang  von  1850,  abgeleitet  aus 

den  Beobachtungen  auf  der  Hamburger  Sternwarte  von  Carl  Riimker.     Hamburg,  1852-59. 

41.  SoNNTAG(a).     1850.    Mittlere  Oerter  fur  1850  von  Vergleichsternen  zum  Cometen  I  1850.     Ast.  Nach.,  Bd. 

xxxiv.    p  same  as  32  ;  s  =  .050. 

42.  WKOTTESLEY  (a).     1850.     A  Catalogue  of  the  Right  Ascensions  of  1009  Stars  contained  in  the  Catalogue  of 

the  British  Association  for  the  Advancement  of  Science By  Lord  Wrottesley.     Memoirs  R.  A.  S., 

Vol.  xxiii. 

43.  CARHINGTON.     1855.    A  Catalogue  of  3735  Circumpolar  Stars  observed  at  Redhill  in  the  years  1854,  '55  and 

'56  and  reduced  to  the  Mean  Position  for  1855.     By  Richard  Christopher  Carrington.    p  same  as  13. 

44.  MADRAS.     1855.     A  Catalogue  of  317  Stars  ....  deduced  from  Observations  at  Madras.     Memoirs  R.  A.  S., 

Vol.  xxii. 

45.  MOESTA.     1855.     Observaciones  Astronomicas  hechas  en  el  Observatorio  Nacional  de  Santiago  de  Chile  en  los 

Anas  de  1853,  1854  y  1855.     Vol.  i.     Santiago,  1859. 

46.  Moscow.     1855.     Catalogue  des  fitoiles  observers  par  M.  Drachoussoff.     Annales  de  1'Observatoire  de  Moscow, 

Vol.  vi.     s  same  as  Nautical  Almanac  ;  p  same  as  53. 

47.  POULKOVA.    1855.     Positions  Moyenne  deduites  des  observations  faites  au  cercle  meridien  1840-1839  et  redu- 

ites  a  1'iSpoque  1855,  0.     Observations  de  Poulkova,  Vol.  viii.     St.  P6tersbourg,  1839. 

48.  CAPE  OF  GOOD  HOPE.     1860.     The  Cape  Catalogue  of  1159  Stars,  deduced  from  Observations  by  Sir  Thomas 

Maclear  at  the  Royal  Observatory,  Cape  of  Good  Hope,  1856  to  1861.     Cape  Town,  1893. 

49.  SANTINI  (<!).    1860.    Posizioni  Medic  di  1,425  Stelle,  dedotte  dal  osservazioni  fatte  dal  defunto  Prof.  Trettenero 

1861-65.    Venezia,  1870.    p>  =  0 ;  0.1 ;  0.2. 

50.  GREENWICH.     1860.     Seven  Year  Catalogue  of  2022  Stars  deduced  from  Observations  extending  from  1854  to 

1860  at  the  Royal  Observatory,  Greenwich. 

51.  Moscow.     1860.     Resultate  aus  der  Zonen-Beobachtungen  am  Meridian   Kreise  der  Moskauer  Sternwarte 

wahrend  der  Jahre  1858-69.     I  Zone  0°-4°.     Memoires  de  1'Acaddmie  Imperiale  des  Sciences  de  St.  Peters- 
bourg,  viii  Seiie  :  Classe  Physico-Mathematique,  Vol.  I,  No.  5.    *  same  as  Poulkova,  1855  ;  p  same  as  53. 

52.  PARIS.     1860.     Catalogue  de  1'Observatoire  de  Paris.     Etoiles  observec  de  1854  a  1867. 

53.  RADCLIFFE,    1860.     Second  Radcliffe  Catalogue,  containing  2386  Stars  deduced  from  observations  extending 

from  1854  to  1861  ....  Oxford,  1870. 

54.  YARNALL.     1860.     Catalogue  of  Stars  observed  at  the  United  States  Naval  Observatory  during  the  years  1845 

to  1877.    Third  eJition  revised Washington,  1889. 

55.  POULKOVA  ((J).     1862.     Observations  faites  a  1'Iustrumenl  des  passages  (Stabli  dans  le  Premier  Vertical.     Oom. 

Observations  de  Poulkova,  Vol.  iii,  pp.  223-238. 

56.  GREENWICH.     1864.     New  Seven  Year  Catalogue  of  2760  Stars,  deduced  from  Observations  extending  from 

1861  to  1867  at  the  Royal  Observatory,  Greenwich. 

57.  BRUSSELS.     1865.     Catalogue  de  10,792  Etoiles  observed  a  1'Observatoire  Royal  de  Bruxelles  de  1857  a  1878 

....  Par  Ernest  Quetelet,  Bruxelles,  1887. 


MEAN   RIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND    FIFTY-FOUR   STARS.  7 

58.  POUI.KOVA  (a).     1865.     Ascensions  droites  Moyenne  des  dtoiles  occasionnelleineut  observes   pour  1865,0. 

Observations  de  Poulkova,  Vol.  xii. 

59.  SciiJELLERUp(a).     1865.     Stjernefortcgnelse  indeholdende    10,000  Positioner   af  Teleskopiske    Fixstjerner 

imellem  —  15  og  +  15  Gradus  Deklinution.  Kjabenhavn,  1864.  s  same  as  Nautical  Almanac  Interpolated 
as  follows  :  ».=  1860  +  T'5  (1875-1860)  ;  p  same  as  53. 

60.  GLASGOW.    1870.    Catalogue  of  6415  Stars  for  the  Epoch  1870,  deduced  from  Observations  made  at  the  Glasgow 

University  Observatory  during  the  Years  1860  to  1881  ....  By  Robert  Grant.     Glasgow,  1883. 

61.  MELBOURNE.    1870.    First  Melbourne  General  Catalogue  of  1227  Stars  for  the  Epoch  1870  deduced  from  Obser- 

vations extending  from  1868  to  1870,  made  at  the  Melbourne  Observatory.     Melbourne,  1874. 

63.     GREENWICH.     1872.     Nine  Year  Catalogue  of  2263  Stars  deduced  from  Observations  extending  from  1868  to 
1876,  made  at  the  Royal  Observatory,  Greenwich. 

63.  ASTKOXOMISCIIE  GESELLSCUAPT  ZONES.    1875.     These  include  all  of  this  series  of  catalogues  published, 

together  with  the  places  of  those  stars  found  in  the  Lcyden,  Lund  and  Dorpat  Zones,  those  of  the  earlier 
and  later  Lund  Zones  being  combined  separately,  p  is  taken  the  same  as  Paris,  '75  ;  p'  =  1.  throughout 
the  series. 

64.  ARM  AC.  n.     1875.    Second  Armagh  Catalogue  of  3300  Stars  for  the  Epoch  1875,  deduced  from  Observations  made 

at  the  Armagh  Observatory  during  the  Years  1859  to  1883 Dublin,  1886.    p  same  as  60. 

65.  BECKER.     1875.     Resultate  aus  Beobachtungen  von  521  Bradlcy'schen  Sternen  am  grossen  Berliner  Meridian- 

kreise  von  Dr.  E.  Becker.    Berlin,  1881. 

66.  CORDOBA.     1875.     Catalogo  General  Argentine.     Cordoba,  1886. 

67.  DUNSINK.     1875.     Mean  Places  of  321  Red  Stars  deduced  from  Observations  made  with  the  Meridian  Circle  at 

Ounsink.         .  .  Dublin,  1882.     i  =  0 ;  p  same  as  Paris,  '75. 

68.  WASHINGTON.     1875.     The  Second  Washington  Catalogue  of  Stars  ....  prepared  under  the  Direction  of 

J.  R.  Eastman. 

*  obtained  through  Newcomb's  system, 
s'  =  —  0"  .33  from  •!  =    0  to  <J  =  40° 
.00  400  50° 

=  +       .09  50°  900 

69.  GOTTINOEN.     1875.     Mittlere  Oerter  der  in  der  Zonen  —  0°  und  —  1°  der  Bonner  Durchmusterung  enthal- 

tenen  Sterne.  .  .  .  Gottingen,  1869.  «  same  as  for  Nautical  Almanac  as  follows :  »  =  slm  +  ^  (»18,5 
— *IMO)  •  P  sarne  as  Glasgow,  '70. 

70.  HARVARD.    1875.    Catalogue  of  Primary  and  Secondary  Stars  observed  during  the  years  1870-1879  with  the 

Meridian  Circle  of  the  Harvard  College  Observatory.     Cambridge,  1886. 

71.  PARIS.     1875.     Catalogue  de  1'Observatoire  de  Paris,     fitoiles  observee  de  1868  a  1881. 

72.  POULKOVA.     1875.     Catalog  von  5634  Sternen  fiir  die  Epoche  1875.0  aus  den  Beobachtungen  am  Pulkowaer 

Meridiankreise  wiihrend  der  Jahre  1874-1880  von  H.  Romberg.     St.  Pe'tersbourg,  1891. 

73.  STOCKHOLM.     1875.     Results  of  meridian  observations  found  in  the  first  five  volumes  of  the  publications  of 

the  Stockholm  Observatory,    p  same  as  Paris,  "75. 

74.  RESPIGHI  (<t).     1875.     Catalogo  delle  Declinazione  Medie  pel  1875.0  di  1463  Stelle  comprese  fra  i  parallel! 

20°  e  64°  n<jrd Roma,  1880. 

75.  CAPE  OF  GOOD  HOPE.    1880.     Catalogue  of  12,441  Stars  for  the  Epoch  1880  from  Observations  made  at  the 

Royal  Observatory,  Cape  of  Good  Hope,  during  the  Years  1871  to  1879.    By  Edward  J.  Stone.    London,  1881. 

76.  GREENWICH.     1880.    Ten  Year  Catalogue  of  4059  Stars,  deduced  from  Observations  extending  from  1877  to 

1886  at  the  Royal  Observatory,  Greenwich. 

77.  MELBOURNE.    1880.     Second  Melbourne  General  Catalogue  of  1211  Stars  for  the  Epoch  1880,  deduced  from 

Observations  extending  from  1871  to  1884,  made  at  the  Melbourne  Observatory.     Melbourne,  1889. 

78.  RESPIOHI   (<!).      1880.     Catalogo  delle  Dccliuazioue  Medic  pel  1880,0  di  1004  Stelle  di  1*  in  6«  grandezza 

comprese  fra  0°  e  20°  nord,  e  64°  e  9QO  nord Roma,  1885. 


8 


UNIVERSITY   OP   PENNSYLVANIA. 


79.     MUNICH  («).     1880.     Erster  Miinchener  Sternverzeichnisg  erlialtend  die  Mittlcren  Oerter  von  33,082  Stcrnen. 

Miiuchen,  Neue  Annalen,  Bd.  i.     p  same  as  60. 
80     DE  BALL  (<S).     1880.     Declinationen  von  200  Stcrnen  innerhalb  der  Zone  +  49°  bis  51°,  nach  Beobachtungen 

im  ersten  Vertical  am  Passagen-instrumentc  der  Ilerzoglichen  Steruwarte  zu  Gotha.     Ast.  Nach.,  Bd.  ci, 

353. 

81.  CAPE  OF  GOOD  HOPE.     1885.     Catalogue  of  1713  Stars  for  the  Equinox  1885,0  from  Observations  made  at  the 

Royal  Observatory,  Cape  of  Good  Hope,  during  the  Years  1879  to  1885. 

82.  HAEZER.     1885.     Besultate  aus  Beobachtungen  am  Meridiaukreise  der  Herzoglichen  Sternwarte  zu  Gotha. 

Ast.  Nach.,  Bd.  cxxvii,  170.     s  =  0  ;  p  =  J  that  of  76. 

83.  KASAN  (J).     1885.     Les  Observations  faites  a  I'instrunient  des  passages  e'tabli  dans  le  premier  vertical.     Kasan 

Observations  for  1893. 

84.  KARLSRUHE.     1885.     Lists  found  in  the  first  four  volumes  of  the  publications  of  the  observatory,    s  =  0  ;  p 

same  as  Radcliife,  '60. 

85.  WASH-BURN  (rf)  '84,  '85.     1885.     Publications  of  the  Washburn  Observatory,  Vol.  iv. 

86.  SAFPORD  (a).     1885.     The  Williams  College  Catalogue  of  North  Polar  Stars.     Williamstown,  Mass.,  1883. 

87.  NYREN  (•*).     1887.    Declinationsbestimmungen    einiger  Helleren  Sterne  zwischen   +   18°  und   +   26°  am 

Pulkowaer  Verticalkreise.    A.  N.,  No.  2904,  Bd.  121. 

83.     CAPE  OP  GOOD  HOPE.     1890.     A  Catalogue  of  3007  Stars  for  the  Equinox  1890  from  Observations  made  at  the 
Royal  Observatory,  Cape  of  Good  Hope,  during  the  Years  1885  to  1895. 

89.  CINCINNATI.     1890.     A  Catalogue  of  2000  Stars  for  the  Epoch  1890.     Publications  of  the  Cincinnati  Observa- 

tory, No.  13.    p  same  as  Paris  75. 

90.  DUNSINK.     1890.     Mean  places  of  717  Stars  deduced  from  Observations  made  with  the  Meridian  Circle  at 

Dunsink.     Dublin,  1896.     «  =  0;  p  same  as  71. 

91.  GLASGOW.     1890.     Second  Glasgow  Catalogue  of  2156  Stars  for  the  Epoch  1890  deduced  from  Observations 

made  at  the  Glasgow  University  Observatory  during  the  Years  1886  to  1892.     Glasgow,  1892. 

92.  KtiSTNER.     1890.     Veroffentlichung  der  Koniglichen  Sternwarte  zn  Bonn,  No.  2.     »  =  0. 

93.  RADCLIPPE.    1890.     Catalogue  of  6424  Stars  for  the  Epoch  1890.     Formed  from  Observations  made  at  the 

Radcliffe  Observatory,  Oxford,  during  the  Years  1880-1893. 

94.  BATTEEMANN.     1895.      Resulte  aus  Beobachtungen  von   379   Anhaltsternen    und  1640    durch    Anschluss 

bestimmteu  Sternen,  angestellt  in  den  Jahren  1892-1897  am  Grossen  Berliner  Meridiankreise  von  Dr.  II. 
Battermann.  Berlin,  1899.  s  =  0. 

95.  CINCINNATI.     1895.     Catalogue  of  2030  Stars  for  the  Epoch  1895.    Publications  of  the  Cincinnati  Observatory, 

No.  14.     s  =  0 ;  p  same  as  71. 

9G.     TUCKER  (a).     1895.     Meridian  Circle  Observations  of  310  Standard  Stars.     Publications  of  the  Lick  Observa- 
tory, Vol.  iv.     Sacramento,  1900. 

97.  TUCKER  (i$).     1897.     The  entire  list  of  stars  was  very  carefully  observed  by  R.  H.  Tucker,  of  the  Lick  Obser- 

vatory, in  the  years  1896  and  1897.  It  was  intended  to  publish  the  results  of  these  observations  in  full  in 
this  connection,  but  the  preparation  of  this  work  has  been  so  long  delayed  that  it  now  appears  superfluous, 
in  view  of  the  fact  that  a  much  more  detailed  report  than  could  be  given  here  will  appear  in  a  forthcoming 
publication  of  the  Lick  Observatory.  The  following  note  is  by  Mr.  Tucker  : 

"Each  star  was  observed  twice  in  each  position  of  the  instrument,  fixed  circle  East  and  West,  and 
"  the  greater  part  of  the  stars  above  70°  were  similarly  observed  at  both  culminations. 

"The  places  were  reduced  with  the  Declinations  from  the  catalogue  of  Louis  Boss,  Declinations  of 
"  fixed  Stars,  U.  8.  Northern  Boundary  Commission,  1879. 

"The  probable  error  of  a  single  observation  is  ±  0".18.  The  probable  error  of  observation  for  the 
"mean  of  four,  in  the  two  positions  is  ±  0".12,  including  the  effect  of  graduation  error." 

The  reduction  to  Auwers'  system  has  been  applied  and  the  results  have  been  employed  with  a  uniform 
weight  of  3. 

98.  WIRTZ,  (if).     1900.     Bcstimmung  der  Deklinationen  von  487  Sternen  und  der  Polhohe  der  Bonner  Sternwarte 

aus  Beobachtungen  ....  im  Ersten  Vertical.  Verotfcntlichung  der  Koniglichen  Sternwarte  zu  Bonn- 
No.  3. 


MEAN    RIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND   FIFTY-FOUR   STARS.  9 

99.    DUNSINK.     1900.     Mean  Places  of  1101  Stars  deduced  from  Observations  made  with  the  Meridian  Circle  at 
Dunsink.    Dublin,  1899.    p  same  as  Paris,  '75. 

100.  KI-STNKU  (a).    1900.     Veroffentlichung  der  Koniglichen  Sternwarte  zu  Bonn,  No.  4. 

Yearly  Series. 

101.  1835-1869.     EDINBURGH.     Astronomical  Observations  at  the  Royal  Observatory,  Edinburgh. 

102.  1836-1869.     CAMHKIDOE.     Astronomical  Observations  made  at  the  Observatory  of  Cambridge. 

103.  1863-1876.     RADCLIFPE.     Results  of  Astronomical  Observations  made  at  the  Radclifle  Observatory. 

104.  1862-1887.    MADRAS.     Meridian  Circle  Observations. 

105.  1879-1882  (a).     BRUSSELS.     Annales  de  1'Observatoire   Royal  do  Brusselles,  Nouvelle  Series.     s  same  as 

Nautical  Almanac  ;  p  same  as  57. 

106.  1887-1896.     GREKNWICH.     Annual  volumes. 

Method  of  Reduction. 

Approximate  positions  for  1875  were  obtained  from  whatever  source  was  available. 
Many  of  these  were  the  result  of  a  previous  reduction,  and  with  very  few  exceptions  the 
assumed  places  differed  from  the  final  values  only  by  fractions  of  a  second.  The 
assumed  proper  motions  were  in  part  the  result  of  a  previous  reduction,  others  were 
taken  from  Auwers'  Bradley  and  other  sources. 

These  assumed  coordinates  were  then  reduced  to  the  epoch  of  the  various  catalogues 
in  which  the  star  was  found,  using  for  this  purpose  the  formula 

a  =  aW5  +  [£)  (r  -  1875)  +  J  [g]  (r  -  1875)'  +  J  [g]  (r  -  1875)' 

a  being  the  Right  Ascension  or  Declination  of  any  star. 

r  the  epoch  of  the  catalogue. 

The  formulae  for  the  differential  coefficients  for  the  epoch  1875,  using  the  constants 
of  Struve  and  Peters,  are  as  follows,  in  which 
a  =.  the  Right  Ascension. 
5  :=  the  Declination. 

(i  •=.  the  Proper  Motion  in  Right  Ascension. 
H'  =  the  Proper  Motion  in  Declination. 

~  =  3.W225  -(-  [0.126115]  sin  a  tan  8  +  p. 

~  =  [1.302206]  cos  a  +  p'. 

%  =  [5.988]  p  cos  a  tan  3  +  [4.812]  p'  sin  a  sec2  8  +  [4.99]  p  //  tan  8. 

$  =  [4.63380 J  (£-'')+  [5.98778]  (~  +  ?)  cos  a  tan  5  +  [4.81 169]  (~  +  /"  )  sin  a  sec2  5 

+  [4.9866]  p  ft'  tan  8  +  0/000032210. 
;£'  =  [4.63380 J  (*-  -A"  )  +  [7.16387 J  (-£  +")  sin  a  +  [6.7367B]  f  sin  28. 

=  [2.0987]  ( J  +  5)  sin  a  +  [7.1639J  (£  +  f )  sina  +  [3.0255n]  (£  +  ,)  %  cos  a. 
The  numbers  enclosed  in  brackets  are  logarithms. 


10 


UNIVERSITY   OF   PENNSYLVANIA. 


fiQ 

For  ^3  the  Right  Ascension  and  Declination  were  reduced  to  1825  and  1925,  using 
for  this  purpose  the  first  and  second  differential  coefficients  already  computed.  ^  was 

then  derived  for  these  dates,  the  differences  giving  -^  with  all  necessary  precision. 
For  checking  these  values  the  tables  given  by  Gould*  were  employed  from  Oh  to  12h, 
neglecting  proper  motion.  From  12h  to  24h  the  tables  of  Oppolzerf  were  similarly 
used. 

As  already  stated  the  catalogue  places  were  reduced  to  Auwers'  system  whenever 
the  necessary  corrections  were  available.  A  correction  for  proper  motion  was  also 
applied  in  all  cases  where  the  necessary  data  could  be  found. 

Let  T  be  the  epoch  of  the  catalogue, 

t    the  mean  date  of  observation,  usually  different  from  t, 
H"  the  proper  motion  employed  in  forming  the  catalogue, 
/«    the  proper  motion  assumed  in  this  discussion, 
The  correction  will  be  (t  —  f)  (fi  —  fi")  =  ^a. 

It  is  perhaps  superfluous  to  state  that  both  t  and  fj."  are  unknown  in  case  of  many 
of  the  older  catalogues. 

Let  n  be  the  difference  between  the  corrected  catalogue  place  and  the  assumed  place, 
reduced  as  above  explained  to  the  epoch  of  the  catalogue, 
Then  each  catalogue  furnishes  an  equation  of  the  form 

j/p~(Aa  +  Tbp  =  mn) 

In  which   p    is  the  weight  of  the  catalogue  place, 

Aa  the  correction  to  the  assumed  Declination,  or  Right  Ascension, 
A[i  the  correction  to  the  assumed  proper  motion, 
7=  1875  -*•* 
A  least  square  solution  gives  the  most  probable  values  of  Aa  and  A(i. 

The  method  of  solving  the  equations  is  one  very  commonly  employed  in  cases  like 
this  and  is  as  follows  : 

Let  t0  be  the  weighted  mean  of  the  catalogue  epochs,  or  of  the  epoch  of  observa- 
tion when  this  differs  from  that  of  the  catalogue, 

tlt     4          4   the  epochs  of  the  respective  catalogues, 
Tlf    T2         Tn  =  (t,  —  t0),      (t,  -  4)         (tn  -  g 
"S,pT  should  be  zero. 

*  Catalogo  de  Las  Zonas  Estelares,    Appendix,  Table  iv,  Cordoba,  1884.     In  usiug  this  table  it  must  be 
remembered  that  the  value  of  ps  as  given  in  column  four  should  be  doubled.     See  Ast.  Nach.,  Bd.  137,  p.  295. 
f  Lehrbuch  zur  Bahnbestimmnng  der  Komelen  und  Planeten,  Vol.  i,  Table  XII. 


MEAN   EIGHT   ASCENSIONS   OF   TWO    HUNDRED   AND   FIFTY-FOUR   STARS. 


11 


Then  we  have 


Aa  =     v  A«  = 

Check  Spvv  =  2pnn  —  (2p»)  Aa  —  (S,pTn) 
Aa  for  1875  will  be  the  above     Aa  +  (1875  —  t0)  A/u. 
An  example  follows  which  will  illustrate  the  various  steps  in  the  process : 


Star. 
B  A  C  3140 


Assumed  Coordinates  and  proper  motion  for  1875.0. 
a  =   9"  7"  10-.87    «  =  +  .0056 
<5  =  540  32'  11".  15    u'  =  +  .068 


Cbfaloyw. 

T 

1 

Ai>. 
Oft.. 

ff 

• 

P 

pi 

pn 

T 

pT 

pTn 

pT« 

V 

1 

Bradley 

1755 

54.2 

8 

+  .0056 

—0.009 

.3 

—18.74 

—0.0027 

—103.22 

—80.97 

+0.2790 

+3199.20 

—0.063 

2 

Piazzi 

1800 

04.83 

9 

+0.261 

.08 

+  0.39 

+0.0209 

—  52.59 

—  4.21 

—1.0962 

220.92 

—0.300 

3   Groombridge 

1810 

08.8 

6 

—0.244 

.2 

1.76 

—0.0488 

—  48.62 

—  9.72 

+2.3668 

471.42+0.208 

4   Dorpat 

1814 

1411 

2 

—0.212 

.2 

2.82 

—0.0424 

—  43.81 

—  8.66 

+1.8444 

376.71 

+0.179 

5 

Pond 

1830 

31.54 

13 

+0.070 

.4 

12.62 

+0.0280 

—  25.88 

—10.35 

—0.7280 

269.36 

—0.091 

6 

Madras 

1835 

11 

+0.042 

.3 

10.50 

+0.0126 

—  22.42 

—  6.73 

—0.2814 

150.08 

—0.061 

7  jRiimker 

1836 

6 

—0.040 

.2 

7.20 

—0.0080 

—  21.42 

—  4.28 

+0.1720 

92.02 

+0.023 

8   Armagh 

1840 

34.74 

2 

+0.006 

.1 

3.47 

+0.0006 

—  22.68 

—  2.27 

—0.0188 

52.21 

—0.025 

9   Gilliss 

1840 

41.85 

1 

+  .011 

—0.010 

.05 

2.09 

—0.0005 

—  15.57 

—  0.78 

+0.0080 

12.48 

—0.005 

10 

Edinburgh 

1842 

42.18 

5 

+0.225 

.5 

21.09 

+0.1125 

—  15.24 

—  7.62 

—1.7100 

115.52 

—0.239 

11 

Oeltzen'sArg'er 

1842 

42.12 

1 

—0.118 

.05 

2.11 

-0.0059 

—  15.30 

—  0.77 

+0.0944 

12.24 

+0.104 

12   Greenwich 

1845 

44.87 

6 

+  .011 

—0.186 

.7 

31.41 

—0.1302 

—  12.55 

—  8.79 

+1.6368 

110.88 

+0.173 

13    Kadcliffe 

1845 

47.9 

7 

+  .004 

+0.103 

.9 

43.11 

+0.0927 

—    9.52 

—  8.57 

—0.8858 

81.70 

—0.114 

14    Paris 

1845 

41.6 

18 

—0.043 

1.1 

45.76 

—0.0473 

—  15.82 

—17.40 

+0.7482 

274.92 

+0.028 

15 

Poulkova 

1855 

47.80 

5 

+  .0056 

—0.086 

1.0 

47.80 

—0.0860 

—    9.62 

—  9.62 

+0.8256 

92.16 

+0.075 

16 

Greenwich 

1860 

59.5 

3 

+  .004 

—0.013 

.9 

53.55 

—0.0117 

+    2.08 

+  1.87 

—0.0247 

3.99 

+0.010 

17 

Radcliffe 

1860 

59.2 

4 

+  .004 

—0.003 

.4 

23.68 

—0.0012 

+    1.78 

+  0.71 

—0.0021 

1.26 

.000 

18   Yarnall 

1860 

72.5 

4 

—0.112 

.7 

50.75 

—0.0784 

+  15.08 

+10.56 

—1.1872 

160.06 

+0.117 

19 

Brussells 

1865 

66.00 

4 

+0.032 

1.1 

72.60 

+0.0352 

+    8.58 

+  9.44 

+0.3008 

80.84 

—0.031 

20 

A.  G.  Zones 

1875 

75.2 

2 

—0.131 

.3 

22.56 

—0.0393 

+  17.78 

+  5.33 

—0.6943 

94.34 

+0.138 

21 

Paris 

1875 

81.2 

8 

+0.039 

.8 

24.36 

+0.0117 

+  23.78 

+  7.13 

+0.2769 

168.98 

—0.028 

22    Stockholm 

1875 

75.53 

8 

—0.130 

.4 

30.21 

—0.0520 

+  18.11 

+  7.24 

—0.9360 

180.32 

+0.187 

23 

Madras 

1878.40 

78.61 

5 

+0.098 

.5 

39.31 

+0.0490 

+  21.19 

+10.60 

+1.0388 

224.72 

—0.089 

24 

Greenwich 

1880 

84.24 

7 

+  .0056 

+0.045 

2.9 

+244.30 

+0.1305 

+  26.82 

+77.78 

+3.5010 

2085.04 

—0.032 

18.58 

779.71 

—0.0607 

—  0.08 

+5.5322 

+8481.87 

Sj> 

Zp< 

2pra 

ZpZ' 

ZpZVt 

2p2" 

»-»-«* 

Weighed  mean  date  =  1857.42 


Zpn"  — 

Aa  = 


Check 


0.1277 
0.1815 

—  0.0003 

—  0.0036 
0.1276 


A«1875=  —0.0045  +  (0.00065  X   (1875  —  1857.42))  =  +  0.0069 


Assumed  a 

9"    7°    10-.  87 

Final  value 

9"    7"    10-.877 

Assumed 

+  0?0056 

Finn]  value 

+  0.00625 

12 


UNIVERSITY    OF    PENNSYLVANIA. 


Weights. 

In  case  of  the  Right  Ascensions  the  weights  have  been  taken  from  Auwers'  values, 
Astronomische  Nachrichten,  Bd.  151,  for  all  authorities  found  there.  For  other  cases  the 
attempt  has  been  made  to  conform  as  closely  to  this  system  as  practicable. 

For  the  Declinations  the  system  of  weights  is  nearly  the  same  as  that  given  by 
Davis.*  The  most  noticeable  differences  between  the  weights  here  employed  and  those  of 
Newcomb  are,  first,  the  greater  value  assigned  by  Newcomb  to  the  Poulkova  and  Wash- 
ington catalogues ;  and  second,  in  general  the  greater  increase  in  weight  corresponding  to 
an  increase  in  the  number  of  observations.  This  last  feature  is  not  usually  very  con- 
spicuous in  the  present  discussion,  as  there  are  comparatively  few  cases  where  the  number 
of  observations  is  large.  For  the  purpose  of  comparison  the  weights  assigned  by  New- 
comb  to  the  authorities  employed  in  the  above  example  are  given  below,  together  with 
such  as  are  given  by  Bossf  in  connection  with  his  investigation. 


l 

2 

3 

4 

5 

6 

7 

8 

9 

10 

ll 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

Wght.  here  used 

.6 

.3 

.0 

.6 

1.0 

.5 

.5 

.3 

.5 

3.0 

.0 

3.0 

2.0 

2.0 

2.0 

1.0 

1.5 

2.0 

1.0 

1.0 

1.0 

1.5 

.3 

1.5 

2.0 

1.0 

3.0 

Newcomb 

.5 

.4 

1.0 

3.0 

4.0 

5.0 

1.5 

2.5 

2.5 

2.0 

Boss 

.1 

.3 

.8 

.2 

.6 

.8 

1.5 

2.5 

.6 

1.0 

3.0 

1.0 

.7 

3.0 

1.5 

•  1 

This  comparison  will  illustrate  the  different  conclusions  which  have  been  reached  as 
to  the  relative  merits  of  some  of  the  authorities.  It  is  not  claimed  that  the  weights  here 
employed  are  in  all  cases  the  best,  but  the  effort  has  been  made  to  follow  a  consistent 
system  throughout  in  order  to  reach  results  which  shall  be  so  far  as  possible 
homogeneous. 

The  Star  List. 

The  list  of  254  latitude  stars  which  follows  includes  74  which  are  found  in  New- 
comb's  new  Fundamental  Catalogue.  The  places  of  these  have  been  taken  directly  from 
that  publication,  applying  the  reduction  to  Auwers'  system  as  explained  below.  Polaris 
is  an  exception,  the  position  being  taken  without  change  from  Newcomb.  There  are  also 
three  stars  given  in  Davis'  paper  before  referred  to. — The  Declinations  and  Proper 
Motions  of  Fifty-six  Stars — the  declinations  of  these  have  been  taken  from  that  publication. 

The  coordinates  of  the  remaining  stars — 180  right  ascensions  and  177  declinations 
— have  been  derived  as  explained  in  the  preceding  pages. 

As  Newcomb's  system  is  no  doubt  preferable  to  that  of  Auwers'  for  the  reason  that 


*  Declinations  and  Proper  Motions  of  Fifty -six  Stars,  pages  14-18. 

\  Declinations  of  the  Fixed  Stars,  Report  of  the  U.  S.  Northern  Boundary  Oommission,  Appendix  ii. 


MEAN    RIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND    FIFTY-FOUR  STARS. 


13 


it  represents  more  closely  the  actual  state  of  the  celestial  sphere,  it  is  very  desirable 
that  we  should  he  able  to  refer  our  coordinates  to  that  system.  This  may  be  very  readily 
done  by  employing  the  formulae  and  tables  given  by  Newcomb  for  passing  from  one 
system  to  the  other.  These  are  reproduced  here  for  the  convenience  of  any  wishing  to 
make  the  change.  The  reduction  of  the  declinations  to  the  system  of  Boss  is  also 
included. 

In  what  follows  N  refers  to  the  system  of  Newcomb, 
A  refers  to  that  of  Auwers. 

On  page  156  of  Newcomb's  memoir  is  given  for  the  difference  of  the  Equinoxes 

N  =  A  +  -.006  +  -.00100  (T—  1875) 

Combining  this  with  the  difference  depending  on  the  Declinations,  page  165,  the 
reduction  in  Right  Ascension  for  any  time  Thaa  the  form 


with  a  similar  expression  for  the  Declination. 

In  the  table,  divisions  A  and  B  give  the  data  for  reducing  the  Right  Ascensions  and 
Declinations  respectively  from  the  system  of  Auwers  to  that  of  Newcomb  ;  C  for 
reducing  the  declinations  to  the  system  of  Boss. 


Declination 

A 

B 

C 

Aa 

*P 

Ad 

Ap' 

A(f 

V' 

+  85° 

I 

* 

rr 

—  .00 

+     .37 

ff 

—  .04 

// 

+     .30 

80 

—  .017 

+  .119 

+   .03 

+     .45 

—  .07 

+     .30 

75 

—  .008 

+   .127 

h   .04 

+     .46 

—  .10 

+     .27 

70 

—  .000 

+  .129 

+  .02 

+     .32 

—  .13 

+     .10 

65 

f  .004 

+   .127 

+   .03 

+     .27 

—  .14 

—     .00 

60 

+   .005 

+  .124 

+   .09 

+     .26 

—  .10 

—     .10 

55 

h   .005 

+  .123 

+  .19 

+     .32 

—  .04 

—    .10 

50 

+  .002 

+  .128 

+   .22 

+     .86 

+   .04 

—     .10 

45 

—  .014 

+  .111 

-I-   .30 

+     .09 

+  .07 

—     .35 

40 

—  .012 

+  .109 

+  .32 

—     .72 

+  .08 

—  1.20 

35 

—  .009 

+   .096 

+   .29 

—     .86 

+  .06 

—  1.33 

30 

—  .004 

+   .090 

+  .26 

—     .81 

+  .05 

—  1.22 

35 

+  .004 

+  .091 

+  .24 

—     .85 

+   .06 

—  1.18 

20 

h   .006 

+  .093 

+   .24 

—     .94 

+   .09 

—  1.27 

15 

+  .009 

+  .094 

+  .31 

—  1.00 

+  .15 

—  1.36 

10 

+  .011 

+  .098 

+  .36 

—     .98 

+  .18 

—  1.81 

+    5 

+  .012 

h   .103 

+  .36 

—     .92 

+  .19 

—  1.24 

0 

+   .012 

+  .108 

+  .39 

—     .80 

+   .20 

—  1.16 

—    5 

+  .012 

+  .113 

+   .42 

—     .75 

+  .23 

—  1.14 

—  10 

+  .010 

+   .113 

+  .55 

—     .80 

+  .34 

—  1.25 

—  15 

+  .010 

+   .115 

+  -74 

—     .72 

+   .48 

—  1.30 

—  20 

+  .009 

+  .116 

+   .89 

—     .54 

+  .58 

—  1.30 

—  25 

+   .009 

+  .126 

+  .99 

—     .44 

+  .66 

—  1.40 

14  UNIVERSITY  OF  PENNSYLVANIA. 

The  reduction  for  proper  motion  is  the  second  term  in  each  of  the  above  expressions. 
For  example,  for  Declination  80° 

<"N  =  \  +  .00119  (T  —  1875) 
f'y  —  ^  +  .0045  ( T  —  1875) 
'"'B  =  '"I  +  .0030  (T—  1875) 

The  results  of  a  direct  comparison  of  the  stars  common  to  the  catalogues  of  New- 
comb  and  Auwers  will  be  found  in  No.  3742,  Astronomische  Nachrichten,  in  an  article 
by  Dr.  Fritz  Cohn  entitled  "  Vergleichung  des  Newcoinb'schen  Fundamenentalcatalogs 
mit  dem  Auwers'schen  A.  G.  C." 

In  the  pages  which  follow  the  column  headed  B.  A.  C.  gives  the  number  corresponding 
to  the  star's  place  in  the  British  Association  Catalogue,  with  the  exception  of  five  not 
found  in  that  publication.  The  magnitudes  are  from  various  sources  and  do  not  claim 
great  precision.  The  column  headed  A  gives  the  number  of  authorities  employed  in 
deducing  the  corresponding  coordinate.  Where  N  or  D  occurs  in  this  column  it  im- 
plies that  the  corresponding  coordinate  is  taken  from  Newcomb  or  Davis,  as  the  case 
may  be. 

The  differential  coefficients  include  the  proper  motions  [j.  and  \t!  in  accordance  with 
the  formulae  given  on  page  9. 

To  illustrate  the  reduction  to  any  epoch,  let  the  Right  Ascension  and  Declination  of 
No.  3  be  required  for  1755  : 

1755  —  1875  =  —  120 

Therefore 

a1765  =  O1 10m  33'.963  —  120  X  3'.  11489  +  J  (120)2  X  0". 0002643  +  08.019  X  (—  1.20)'. 

=  0"    4m22'.046 
dnB  =  37°  59'  14".89  —  120  X  20".0272  +  J  (120)2   X  (—  0".000295)  —  0".175  X  (—  1.20)3 

=  370  19'  9".80 


Auwers'  Bradley  gives 


a  =  0"  4m  22".  08 
(5  =  370  19'  10".0 


MEAN   EIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND    FIFTY-FOUR   STARS. 

Definitive  Positions  1875.0. 


15 


B.  A.  C. 

Mg. 

alSJfJ) 

dt 

d»a 

(100)'  <f« 

M 

HS75.0 

dt 

M 

(100)'  dt 

*' 

A 
a 

A 

P 

8     df* 

dt 

P 

8      df 

h    111       s 

1 

16 

5.1 

0    349.785 

+  3.09580 

+.0003283 

+  .025 

+.00092 

45  22  35'.55 

+20.0460 

—.000162 

—  .171 

—.0054 

N 

2 

LL220 

7.5 

10  12.247 

3.12214 

2468 

.017 

+.00069 

;    354741.51 

20.0845 

289 

.174 

+.0501 

9 

11 

3 

52 

5. 

10  33.963 

3.11489 

2643 

.019 

—.00547 

37  59  14.89 

20.0272 

295 

.175 

—.0057 

23 

20 

4 

•60 

6.2 

12    7151 

8.13969 

8169 

.023 

+.00133 

43   5  48  13 

20.0200 

328 

.178 

—.0062 

19 

19 

5 

99 

0.5 

21  28.282 

311829 

1350 

.011 

—.00159 

18  49  21.31 

19.9573 

510 

.178 

—.0090 

16 

18 

6 

126 

4.2 

0  25  54.538 

+  3  35929 

+       7016 

+  .070 

+.00049 

62  14  29.79 

+19.9212 

—       639 

—  .217 

—.0050 

N 

7 

194 

5.6 

37  25.783        3.83965 

16084 

.270 

-.00617 

74  18  15.76 

19.7567 

994 

.319 

—.0307 

N 

8 

222 

4.0 

42  11.898        3.10632 

785 

.009 

+.00444 

6  54  15.47 

19.6803 

915 

.170 

—.0349 

N 

9 

259 

3  9 

49  49.230 

3.30819 

3068 

.018 

+.01211 

37  49  14.99 

19.6203 

1129 

.204 

+.0380 

N 

10 

318 

5.0 

1  00  50.736 

3.41633 

3822 

.022 

+.01410 

43  16  31.70 

19.2915 

1396 

.223 

—.0602 

20 

22 

11 

361 

7. 

1    6  30.266 

+  8.01720 

+         186 

+  .009 

—.00504 

—  7  26  49.97 

+19.1745 

—     1840 

—  .153 

—.0418 

15 

16 

12 

394 

6.7 

12  45.553 

3  93545 

9621 

.085 

+.00744 

64   0    6.49 

19.0228 

1877 

.331 

—.0293 

17 

18 

18 

360 

2. 

12  59.80 

20.8603 

15057 

+.1229 

88  38  33.81 

19.0457 

9659 

+.0051 

N 

14 

413 

0.7 

17    7.878 

3.21167 

1538 

.009 

+.00304 

17    958.18 

18.8985 

1630 

.182 

—.0307 

18 

12 

15 

438 

6.0 

21  57.528 

4.35677 

14364 

.157 

+.02478 

69  37  13.22 

18.7107 

2318 

.436 

—.0748 

N 

16 

459 

7.0 

1  25  55.826 

+  3.17059 

+       1217 

+  .008 

+.00105 

11  14  19.72 

+18.6672 

—     1774 

—  .174 

+.0061 

12 

12 

17 

480 

4.2 

29  28.033 

3.49478 

3635 

.016 

—.01629 

40  46  45.47 

18.1746 

2010 

.230 

—.3709 

N 

18 

502 

4.9 

33  12.472 

3.51639 

3603 

.016 

+.00127 

39  56  35.06 

18.3968 

2109 

.233 

—.0217 

N 

19 

592 

5.8 

50  31.460 

3.26527 

1637 

.007 

+.00101 

17  12  22.78 

17.7500 

2286 

.182 

—.0171 

32 

32 

20 

611 

5.0 

53  46.264 

4.36499 

10502 

.070 

—.00047 

6347    5.72 

17.6345 

3107 

.414 

+.0010 

N 

21 

656 

1.1 

2    2    6.635 

+  8.54883 

+       3043 

+  .009 

+.01168 

34  23  41.61 

+17.2389 

—     2712 

—  .226 

—.0355 

N 

22 

706 

6. 

11  13.393 

3.83707 

4751 

.014 

—.00658!     4648    6.64 

16.8415 

3099 

.277 

—.0143 

18 

21 

23 

744 

4.0 

18  47.640 

4.84970 

13108 

.077 

—.00157      66  50  19.39 

16.4952 

4096 

.518 

+.0074 

N 

24 

780 

6.5 

26    3.504 

3.27527 

1508 

.004 

—.00241 

14  28  47.55 

16.1580 

2910 

.170 

+.0402 

25 

23 

25 

816 

6.5 

34   6.927 

4.24693 

6562 

.015 

+.00409 

1    543414.64 

15.6597 

3929 

.344 

—.0286 

16 

18 

26 

872 

3.7 

2  42  37.769 

+  3.51532 

+       2274 

+  .002 

+  .00414 

26  44  37.80 

+15.1107 

—     3410 

—  .197 

—.1028 

N 

27 

916 

6.0 

51  35.637 

3.84960 

3616 

.001 

—.00082 

40  31  59.00 

14.6504 

3884 

.250 

—.0405 

8 

10 

28 

963 

V. 

3   0   2.496 

3.87871 

3554 

.000 

—.00031 

40  28  20.47 

14.1824 

4061 

.244 

+.0045 

N 

29 

981 

5.0 

3  13.561 

3.84883 

3368 

—  .001 

—.00340 

39    8    6.03 

13.9878 

4081 

.234 

+.0083 

20 

22 

30 

993 

6.0 

6  39.454 

8.95407 

3718 

—  .001 

+.00518 

42    2    5.78 

18.7791 

4259 

.249 

+.0164 

14 

17 

31 

1050 

6.5 

3  17  24.064 

+  6.09182 

+      17880 

+  .020 

+.00106 

71  25  31.49 

+13.0686 

—     6798 

—  .747 

+.0046 

12 

18 

32 

1068 

3.8 

20  23.777 

3.24316 

1167 

.000 

+  .00305 

9  17  43.01 

12.8274 

8687 

.136 

—.0366 

N 

33 

1119 

6.4 

32  21.681 

3.38265 

1421 

—  .002 

+.00128 

16    742.19 

12  0132 

8998        .143 

—.0304 

28 

22 

34 

1144 

4.6 

38    5.857 

5.41987 

10153 

.026 

—.00185 

65    8  12.27      11.6256 

6485 

.498 

—.0130 

18 

18 

35 

1221 

6.0 

49  29.036 

3.53321 

1598 

.005 

+.00340 

22    657.66 

10.7081 

4390 

.146 

—.1052 

31 

28 

36 

1237 

4.9 

354   2.951 

+  4.95181 

+       6417 

—  .032 

—.00835 

58  48  19.96 

+10.4740 

—     6199 

—  .851 

—.0006 

14 

18 

37 

1274 

5.8 

4    1  53.137 

3.48607 

1379 

.006 

+.00697  i     19  16  36.53  1      9.8497 

4475 

.129 

—.0342 

N 

38 

1286 

5.6 

5  53.405 

5.23925 

6978 

.048 

+.00063      613158.83 

9.5639 

6755 

.371 

—.0186 

13 

16 

39 

1307 

5.6 

9  50.643 

4.47574 

3766 

.026 

+.00359      49  44  29.36 

9.2099 

5882 

.287 

—.0623 

18 

16 

40 

1364 

6.5 

18   9.030 

8.80681 

1792 

.012 

+.00483 

81    9  16.66 

8.5057 

5056 

.142 

—.1161 

17 

17 

41 

1425 

6.0 

430   4.391 

+  4.70174 

+       3678 

—  .039 

+.00035 

52  49  39  86 

+  7.6519 

—     6369 

—  .223 

—.0166 

16 

16 

42 

1444 

5.9 

3330.448 

3.74561 

1457 

.012 

+.00218      28  22  14.07 

7.3602 

5113 

.117 

—.0298 

19 

18 

43 

1486 

3.3 

43    3.312 

3.25165 

722 

.005 

+.03020  i      6  44  27.92 

6.6416 

4548 

.072 

+.0345 

N 

44 

1496 

6.0 

46  30.153 

7.52098 

13291 

.292 

+.00303      74   417.30 

6.3515 

10441 

.606 

+.0298 

11 

16 

45 

1536 

4.2 

52  18.815 

5.30905 

4186 

.077 

—.00165 

60  15  22.91 

5.8237 

7430 

.232 

—.0140 

N 

46 

1555 

7.0 

4  56  54.749 

+  3.56872 

+         921 

—  .011 

+  .00001 

21    6   1.57;+  5.4353 

—     5032  —  .076 

—.0156 

16 

16 

47 

1568 

5.3 

5   0   8.774        8.54044 

836 

.010 

+.03669      18  28  30.50        5.2123 

5062        .070 

+.0272 

38 

38 

48 

1583 

6.7 

1  53.740        5.55689 

4176 

.096 

—.00509 

62  32    1.37  1      6.0380 

7859        .224   +.0079 

13 

16 

49 

1598 

6.8 

630.813!       9.34113 

17142 

.728 

—.00238 

78  10  57.33        4.6398 

13270!       .743 

+.0019 

12 

12 

50 

*1611 

5.0 

5    645.382        3.132711              513 

.005 

—.00113 

2  42  37.77        4.6206           4464 

.046 

+.0034 

20 

19 

1 

51 

*1625 

7.0 

5    925519  +  3.50302    +         725 

—  .010 

—.00060 

18  17  52.85 

+  4  3856  —     5003 

—  .058 

-.0040 

9 

11 

52 

1687 

1.7 

18  25.625        3.21446 

478 

.006 

—.00144 

6  14    4.10 

3.6099           4625 

.038 

—.0079 

N 

63 

1662 

6.4      22    8.816      18.55094 

63412 

8.022 

+.01181      85    735.66 

3.2903         26717 

2.483 

—.0069 

N 

54 

1706 

6.3      23    1.262        7.99044 

7698 

.436 

—.00156      74  57  22.57 

3.234'3 

11499 

.349 

+.0124 

N 

55 

1751 

5.5      2955.061 

5.99596 

2712 

.144 

—.00177 

65  37  34.15 

215911 

8678 

.136 

—.0387 

14 

17 

1 

>  Maj. 


16 


UNIVERSITY    OF    PENNSYLVANIA. 


B.  A.  a 

Mg. 

a  1876.0 

da 

di 

d?a 
~W 

(WO)3  (Pa 

?• 

S  1876.0 

<tt 
dt 

d?S 

100)*  ,J3j 

i"' 

A 

a 

A 
8 

S  dP 

df- 

6   dp 

h  m   s 

56 

1789 

6.0 

5  33  17.560 

+  2.98760 

+.0000324 

—  .004 

—.00026 

—  °3  38  10"98 

+  2.3379 

—.004337 

—  .020 

+.0062 

15 

14 

57 

1813 

6.3 

39  29.025 

6.43751 

2256 

.195 

—.00332 

68  25  52.32 

1.7300 

9354 

.107 

—.0629 

11 

15 

58 

1821 

6.0 

3934.191 

3.44764 

383 

.010 

—.00070 

15  46  17.27 

1.7864 

5015 

.021 

+.0011 

22 

21 

59 

1846 

5.3 

42  31.641 

3.36855 

333 

.009 

—  00190 

12  36  34.46 

1.5116 

4902 

.016 

—.0158 

10 

16 

60 

1862 

6.0 

45  16.259 

3.40621 

318 

.009 

—.00210 

14  8  16.31 

1.2898 

4960 

.014 

+.0018 

23 

23 

61 

1874 

7.0 

5  47  50.816 

+  6.21420 

+   1221 

—  .171 

—.00295 

66  59  52.43 

+  1.0172 

—  9050 

—  .053 

—.0457 

11 

16 

62 

1923 

6.0 

54  17.298 

4.32443 

258 

.033 

+.00965 

42  54  45.79 

0.3511 

6321 

—  .006 

—.1487 

2:! 

23 

63 

1942 

6.0 

57  58.099 

4.13501 

182 

.027 

—.00032 

38  29  28.93 

+  0.1357 

6031 

+  .002 

—.0420 

16 

15 

64 

1970 

6.5 

6  2  0.277 

3.61559 

+    141 

.013 

—.00245 

22  12  28.27 

—  0.1745 

5268 

.006 

+.0008 

20 

19 

65 

2007 

4.3 

8  35.616 

5.30028 

—    399 

.086 

—.00012 

59  3  10.51 

0.7247 

7721 

.039 

+.0271 

N 

66 

2045 

5.5 

6  15  54.004 

+  5.24501 

—    812 

—  .082 

—.00218 

582856.15 

—  1.3973 

—  7622 

+  .064 

—.0072 

18 

18 

67 

2083 

6.2 

22  7.380 

7.61230 

4089 

.378 

—  03654 

73  47  14.26 

1.9664 

10989 

.214 

—.0337 

10 

11 

68 

2101 

7.5 

22  48.877 

3.62401 

130 

.013 

—.00270 

22  37  32.72 

1.9910 

5247 

.034 

+.0021 

12 

13 

69 

2126 

4.4 

26  8.672 

3.24526 

15 

.007 

—.00003 

7  25  21.07 

2.2870 

4692 

.028 

—.0042 

N 

70 

2139 

6.7 

27  57.173 

4.12875 

506 

.025 

—.00071 

38  32  37.82 

2.4613 

5965 

.057 

—.0215 

13 

13 

71 

2159 

5.1 

6  30  24.188 

+  4.28990 

—    698 

—  .031 

—.00077 

42  35  46.54 

—  2.7119 

—  6189 

+  .069 

—.0594 

16 

19 

72 

•2187 

5.1 

35  11.272 

5.31695 

2019 

.084 

—.00411 

59  33  53.72 

3.0706 

7644 

.135 

—.0037 

19 

21 

73 

2233 

6.0 

44  3.520 

3.59865 

389 

.012 

—.00132 

21  54  23.21 

3.8614 

5133 

.060 

—.0298 

23 

21 

74 

2301 

6.5 

55  33.689 

3.81888 

884 

.015 

+.01101 

29  32  40.18 

5  6255 

5402 

.091 

—.8112 

21 

18 

75 

2317 

6.3 

7  1  33.458 

11.67981 

35652 

1.495 

+.00525 

81  28  40.56 

5.3582 

16407 

1.498 

—.0362 

15 

19 

76 

2341 

5.6 

7  338.299 

+  4.69611 

—   2349 

—  .044 

—.00027 

51  37  59.68 

—  5.4925 

—  6562 

+  .171 

+.0048 

13 

14 

77 

2358 

4.1 

5  28.829 

3.06513 

155 

.004 

—.00067 

—  01715.48 

5.6309 

4264 

.057 

+.0212 

N 

78 

2365 

7.7 

7  48.006 

5.20696 

3758 

.068 

—.00529 

59  8  14.81 

5.8709 

7231 

.237 

—.0243 

13 

14 

79 

2410 

3.6 

12  39.388 

3.58903 

726 

.010 

—.00189 

22  12  37.58 

6.2573 

4944 

.095 

—.0056 

N 

80 

2439 

5.8 

17  51.282 

6.30888 

8341 

.142 

+.00058 

6843  2.93 

6.7301 

8647 

.438 

—.0479 

N 

81 

2473 

4.8 

7  22  50.261 

+  3.34290 

—    523 

—  .006 

—.00117 

12  15  47.15 

—  7.1017 

—  4528 

+  .088 

—.0099 

N 

82 

2488 

5.8 

27  26.887 

4.37485 

2480 

.027 

—.00280 

46  27  12,20 

7.4767 

5886 

.191 

—.0091 

11 

11 

83 

2509 

4.9 

31  0.239 

3.92828 

1587 

.015 

—.00307 

3452  7.63 

7.8851 

5246 

.149 

—.1296 

N 

84 

2551 

3.7 

36  53.968 

3.63058 

1096 

.009 

—.00233 

24  41  44.71 

8.2801 

4790 

.127 

—.0515 

N 

85 

2616 

7.0 

46  18.214 

4.90192 

4898 

.039 

+.00035 

56  49  49.34 

8.9950 

6355 

.305 

—.0231 

14 

17 

86 

2585 

6.6 

7  46  43.781 

+15.27834 

—  123878 

—1.757 

—.00257 

84  24  41.75 

—  9.0370 

—  19867 

+4573 

—.0318 

23 

18 

87 

2660 

5.4 

53  29.442 

2.99857 

271 

.001 

—.00501 

—  3  20  25.95 

9.5220 

3800 

.087 

+.0079 

21 

21 

88 

2676 

6.3 

56  27.588 

3.54958 

1169 

.006 

—.00455 

22  25  9.48 

9.7558 

4475 

.140 

+.0018 

16 

16 

89 

2704 

6.0 

59  47.628 

4.96971 

5950 

.034 

—  00122 

58  36  41.87 

10.0901 

6235 

.352 

—.0786 

12 

13 

90 

2786 

5.2 

8  12  28.130 

8.65640 

1661 

.006 

—.00176 

27  37  14.44 

11.3336 

4417 

.169 

—.3769 

N 

91 

2792 

5. 

8  14  19.908 

+  4.58132 

—   4951 

—  .018 

—.00274 

53  37  12.17 

-11.1928 

—  5515 

+  .314 

—.0999 

17 

18 

92 

2819 

3.5 

19  51.800 

5.04253 

7647 

.021 

—.01719 

61  8  1.23 

11.6083 

5957 

.418 

—.1155 

N 

93 

2880 

6.5 

28  8.194 

3.45679 

1271 

.002 

—.00429 

20  1  5.96 

12.0785 

3967 

.158 

.0000 

21 

21 

94 

2953 

4.2 

37  34.766 

3.41847 

1271 

.001 

-.00172 

18  36  44.03 

12.9579 

3796 

.160 

—.2303 

N 

95 

2982 

5.5 

43  3.436 

5.00819 

8968 

.001 

—.00328 

62  25  39.75 

13.0708 

5472 

.463 

+.0237 

27 

24 

96 

3003 

6.0 

8  45  53.055 

+  5.22336 

—  10816 

+  .007 

—.00501 

65  447.54 

—13.3693 

—  5645 

+  .524 

—.0886 

24 

23 

97 

3052 

6.0 

50  36.236 

3.35833 

1157 

.000 

+.00301 

16  335.26 

13.5503 

3547 

.161 

+.0371 

26 

23 

98 

3083 

6.7 

56  30.430 

4.25797 

5131 

.001 

—.01300 

51  19  12.87 

14.0420 

4384 

.319 

—.0793 

13 

13 

99 

3109 

6.0 

9  029.562 

3.61621 

2148 

.001 

—.00407 

30  9  19.01 

14.2047 

3656 

.206 

+.0062 

17 

17 

100 

3140 

5.0 

7  10.877 

4.36340 

6123 

.008 

+.00625 

54  32  11.05 

14.5532 

4300 

.354 

+.0646 

24 

25 

101 

3170 

6.5 

9  11  56.642 

+  3.52033 

—   1924 

+  .002 

—.00348 

26  46  37.94 

—14.9166 

—  3369 

+  .199 

—.0167 

9 

11 

102 

3228 

6.0 

21  49.756 

3.20010 

838 

.003 

—.00289 

84356.79 

15.4741 

2902 

.157 

—.0093 

13 

14 

103 

3231 

6.0 

23  3.368 

5.81249 

21387 

.152 

+.01541 

72  45  30.61 

15.6072 

5309 

.799 

—.0743 

14 

17 

104 

3281 

6.0 

30  33.134 

3.76960 

3445 

.007 

—.00295 

40  47  59.00 

15.9282 

8265 

.255 

+.0113 

19 

21 

105 

3307 

6.0 

34  15.307 

3.73939 

3391 

.008 

—.00689 

40  19  34.69 

16.1742 

3164 

.252 

—.0402 

15 

17 

106 

3375 

7.0 

946  9.550 

+  3.59771 

—   2823 

+  .009 

—.00171 

35  34  15.89 

—16.7336 

—  2820 

+  .233 

—.0030 

15 

14 

107 

3397 

6.0 

50  3.213 

3.81469 

4309 

.015 

—.00137 

46  031.54 

16.9601 

2914 

.278 

—.0440 

9 

12 

108 

3468 

6.0 

10  348.030 

3.57424 

3096 

.013 

—.00551 

38  1  0.17 

17.5653 

2452 

.237 

—.0340 

11 

12 

109 

3505 

3.6 

9  33.103 

3.64573 

3827 

.017 

—.01532 

43  32  15.51 

17.8074 

2378 

.254 

—.0372 

N 

110 

3495 

5.6 

11  9.018 

9.80G34 

160804 

6.885 

—.09600   8453  5.94 

17.8886 

6400 

3.294 

—.0540 

N 

*  Mean  A.B. 


MKAN   RIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND   FIFTY-FOUR   STARS. 


17 


B.  A.  C. 

Xg. 

a  1S7S.O 

da 

<u 

<P<L 

(100)'  d*a 

c 

H87S.O 

d» 

M 

(loo)1  <ro 

n' 

A 

a 

1 

df 

«  df 

dt 

9 

6   dp 

111 

3530 

6.0 

h  m   s 
10  14  44.321 

+  3.59054 

—.0003573 

+  .016 

—.01279 

A  51  47.04 

—18.1164 

—.002235 

+  .246 

—.1404 

21 

21 

112 

3551 

6.1 

17  7.409 

3.03233 

159 

.007 

—.00501 

—  3  26  35.23 

18.0605 

1838 

.151 

+.0070 

2C 

18 

113 

3584  > 

6.0 

22  48.377 

3.52476 

3229 

.015  —.00202 

39  33  50.76 

18.8753 

2035 

.235 

+.0024 

16 

19 

114 

3647 

5.0 

33  23.R90 

4.17155 

11213 

.108  —.02817 

66  22  13.50 

18.7145 

2150 

.888 

—.0752 

23 

25 

115 

3693 

5.8 

39  47.972 

3.18389 

1035 

.009 

—.00992 

14  51  14.67 

18.8904 

1506 

.179 

—.0516 

89 

86 

116 

3725 

5.1 

10  45  59.573 

+  3.67412 

—   5908 

+  .042 

—.00907 

55  14  56.89 

—19.0313 

—  1614 

+  .274 

—.0186 

21 

23 

117 

3751 

7.0 

49  47.288 

3.26704 

1770 

.012 

—.00332 

2610  1.59 

19.1295 

1353 

.195 

—.0090 

18 

16 

118 

3787 

7.8 

58  35.045 

3.21245 

1677 

.012 

—.03152 

256240.14 

19.8981 

1146 

.186 

—.0596 

17 

18 

119 

3825 

6.7 

11  5  27.361 

3.52927 

5624 

.045 

—.00383 

55  34  23.41 

19.4987 

1129 

.248 

—.0097 

11 

14 

120 

8877 

4.0 

17  24.428 

3.13061 

654 

.010 

+.00937 

11  13  8.04 

19.7828 

761 

.175 

—.0734 

N 

121 

3914 

4.1 

11  2357.710 

+  3.63952 

—  11151 

+  .154 

—.00860 

70-  1  14.71 

—19.8307 

—   744 

+  .274 

—.0239 

N 

122 

3949 

6.0 

31  6.713 

3.27501 

4171 

.035 

—.00710 

51  18  88.87 

19.9299 

614 

.202 

—.0348 

11 

13 

123 

LL.22186 

7.5 

37  35.183 

3.14463 

1757 

.015 

—.00382 

301625.28 

19.9408 

361 

.179 

+.0176 

5 

6 

124 

4010 

6.4 

45  46.132 

3.47944 

3134 

.032 

+.34093 

38  36  55.24 

25.7877 

321 

.240 

-5.7721 

N 

125 

W.B.956 

7.0 

49  54.785 

3.12117 

—   2712 

.023 

—.00537 

42  42  33.60 

20.0439 

—   114 

.176 

—.0091 

r 

8 

126 

4063 

7.0 

11  57  11.829 

+  3.06441 

+    422 

+  .010 

—.00647 

—  4  46  59.70 

—20.0549 

+    88 

+  .166 

—.0022 

20 

16 

127 

4070 

5.7 

58  25.584 

3.15165 

—  48131 

8.874 

—.06178 

86  16  47.85 

19.9778 

56 

.191 

+.0760 

29 

26 

128 

4074 

6.0 

5920.134 

3.07126 

5797 

.069 

—.00880 

63  37  53.58 

20.1359 

78 

.168 

—.0818 

19 

19 

129 

4099 

6.5 

12  4  9.300 

3.06241 

722 

.011 

—.00219 

17  30  17.81 

20.0439 

167 

.165 

+.0070 

18 

18 

130 

4123 

3.4 

9  13.914 

3.00081 

4260 

.044 

+.01382 

57  43  38.27 

20.0356 

263 

.156 

+.0024 

N 

131 

4141 

6. 

1213  0.273 

+  8.03607 

—   1015 

+  .018 

—.00284 

234345.16 

—20.0327 

+   337 

+  .161 

—.0108 

2( 

19 

132 

4195 

4.6 

20  43.369 

2.99891 

1257 

.014 

—.00657 

28  57  48.51 

20.0527 

480 

.155 

—.0808 

N 

133 

4217 

6.0 

24  7.806 

2.85950 

2969 

.030 

—.03144 

52  13  82.78 

19.9400 

619 

.185 

+.0032 

21 

20 

134 

4239 

3.9 

28  8.244 

2.59786 

5412 

.087 

—.01261 

70  28  89  03 

19.8964 

547 

.101 

+.0069 

N 

13-5 

4271 

5.1 

35  33.461 

8.03725 

165 

.010 

+.00488 

10  55  29.28 

19.9102 

771 

.160 

—.0909 

N 

136 

4300 

6. 

12  41  58.304 

+  2.58448 

—   3569 

+  .046 

—.00020 

63  27  49.45 

—19.7291 

+   771 

+  .100 

—.0102 

18 

14 

137 

4318 

7. 

45  59.257 

2.98460 

436 

.011 

—.00232 

17  45  15.18 

19.6561 

952 

.151 

—.0043 

16 

14 

138 

4371 

6. 

56  53.585 

2.36184 

2704 

.038 

—.02840 

64  16  55.50 

19.4285 

920 

.077 

+.0109 

16 

D 

139 

4403 

6.7 

13  339.125 

2.95067 

297 

.010 

—.00589 

17  30  56.71 

19.2846 

1261 

.145 

+.0011 

10 

D 

140 

4433 

5.5 

8  2.768 

2.72915 

1348 

.016 

—.00529 

40  48  54.77 

19.1675 

1245 

.114 

+.0093 

19 

16 

141 

4467 

6.7 

13  14  42.758 

+  2.69642 

—   1244 

+  .015 

—.00615 

40  48  26.06 

—19.0115 

+   1888 

+  110 

—.0135 

N 

142 

4510 

5.4 

23  51.663 

2.21159 

1520 

.021 

—.01198 

60  35  30.75 

18.7026 

1228 

.066 

+.0240 

N 

143 

•4562 

5.8 

34  42.246 

2.86584 

—    216 

.009 

—.00478 

20  35  19.01 

18.8386 

1755 

.128 

+.0277 

28 

23 

144 

4604 

7.0 

42  11.369 

+  3.09164 

+    800 

+  .007 

—.00292 

—  2  12  59.63 

18.0891 

+  2021 

.158 

+.0044 

12 

14 

145 

4643 

6.3 

45  59.908 

—  2.04548 

+  54886 

—2.010 

+.02175 

83  22  45.61 

18.0066 

—  1240 

.668 

—.0598 

19 

23 

146 

4694 

7.2 

14  053.630 

+  2.66069 

—    874 

+  .009 

+.00002 

31  26  63.82 

—17.4277 

+  2028 

+  .101 

—.0994 

17 

14 

147 

4701 

6.0 

3  37.069 

2.24714 

626 

.010  —.00588 

50  258.10 

17.1566 

1753 

.066 

+  .0504 

21 

21 

148 

4728 

6.0 

9  21.039 

2.42131 

496 

.009  S—  .00461 

42  622.85 

17.0451 

1958 

.079 

—.1011 

14 

12 

149 

4758 

6.0 

14  39.780 

2.46386 

416 

.009  —.00028] 

8922  9.29 

16.6933 

2063 

.081 

—.0024 

17 

17 

150 

4825 

6.2 

29  31.903 

2.45312 

224 

.007 

—.00354 

87  10  83.39 

15.USS6 

2238 

078 

—.0586 

17 

17 

151 

4841 

6.0 

14  33  30.806 

+  2.254S7 

—    212 

+  .007 

—.01069 

44  10  55.50 

—15.6918 

+   2100 

+  .064 

+.0293 

16 

19 

152 

4874 

6.2 

88  56.377 

1.48735 

+   1046 

—  .005 

+.00866 

614742.71 

15.4542 

1461 

.045 

—.0323 

16 

19 

153 

4905 

4.6 

45  37.472 

2.76605 

217 

+  .005 

+.00903 

19  37  14.04 

15.1218 

2741 

.102 

—.0803 

N 

154 

4926 

5.7 

50  19.265 

2.82767 

354 

+  .004 

—.00299 

1457  9.49 

14.7674 

2851 

.106 

—.0009 

N 

155 

4919 

4.9 

55  36.075 

0.93382 

2856 

—  .021 

—.01339 

66  25  50.42 

14.4330 

993 

.058 

+.0170 

N 

156 

4974 

4.9 

14  59  40.343 

+  1.97993 

195 

+  .003 

—.03865 

48  830.82 

—14.1646 

+  2060 

+  .049 

+.0361 

N 

157 

5000 

7.2 

15  5  35.112 

2.42969 

72 

.004 

—  .(X.XI-17 

33  33  11.89 

138331 

2625 

.070 

—.0023 

11 

10 

158 

5072 

5.3 

16  48.324, 

2.40058 

136 

.004  —.00477   33  23  55.55 

130931 

2701 

.065 

+.0104 

16 

21 

159 

5113 

6.7 

25  24.620    1.90402 

376 

+  .001 

—.00212 

48  8*5.78 

12.5294 

2221 

.044 

—.0050 

15 

14 

160 

5147 

5.9 

25  10.716 

0.82293 

2658 

—  .018 

—.01874 

64  37  46.26 

12.1847 

981 

.057 

+  .0806 

15 

20 

161 

5180 

5.8 

15  35  14.345 

+  2.75440 

+    412 

+  .002 

+.00032 

16  25  44.63 

—11.8507 

+  3293 

+  .082 

—.0093 

21 

20 

162 

5210 

6.5 

39  26.853    1.62603 

721 

—  .002  —.00812   52  45  22.11 

11.5070 

1979 

.038 

+.0352  15 

15 

163 

5230 

6.0 

48  25.472   2.46853 

265 

+  .002  —.00190;  283228.75   11.2549 

3026 

.002 

+.0011  16 

19 

1841   5271 

4.6 

48  21.287    2.07185 

178 

+  .001  +.03903  ;  4248  8.18   10.2675 

2631 

.042 

+.6288 

N 

165 

5295 

5.6 

51  14.803  +  2.18162 

271 

+  .001  i+.00823i  38  18  82.54 

10.5978 

+  2743 

.046 

+  .0844 

19 

20 

»Haj. 


18 


UNIVERSITY   OF   PENNSYLVANIA. 


B.  A.  a 

Kg. 

a  1875.0 

da 
dt 

fm 

(100)*  (Pa 

M 

i  1815.0 

a 

dt 

M 

(100)»  d«J 

f> 

A 

a 

A 
1 

dl» 

8  dt» 

dP 

6   dp 

h  m   S 

o   /    // 

166 

B.D.72.703 

7.0 

15  56  54.384 

—  0.63714 

+.0007861 

—  .054 

—.01014 

72  44  57.06 

—10.2427 

—.000767 

+  .168 

+  .0179 

6 

7 

167 

5325 

6.4 

57  34.955 

+  2.96095 

631 

.001 

—.00389 

5  19  56.97 

10.1956 

+  3756 

.086 

+.0169 

Id 

16 

168 

5343 

6.5 

58  1.161 

—  1.51902 

13021 

.090 

+.00588 

75  55  54.43 

10.1955 

—  1858 

.297 

—.0187 

15 

16 

169 

5366 

6.0 

16  226.482 

+  2.88865 

553 

.000 

—.00184 

852  4.99 

9.8430 

+  3711 

.079 

—.0015 

18 

17 

170 

5405 

6.0 

7  4.377 

+  2.96279 

614 

.001 

+.00069 

5  20  31.84 

9.4868 

+   3849 

.081 

—.0003 

18 

16 

171 

5462 

5.5 

16  14  24.a59 

—  1.80071 

+   12648 

—  .059 

—.00052 

76  11  29.11 

—  8.9127 

—  2293 

+  .304 

+.0030 

N 

172 

5466 

3.8 

16  24.391 

+  2.64326 

381 

.000 

—.00432 

19  26  52.79 

8.7129 

+   3500 

.057 

+.0463 

N 

173 

5512 

2.9 

22  18.101 

0.79905 

1853 

.010 

—.00317 

61  47  51.17 

8.2369 

1093 

.044 

+  .0554 

N 

174 

5568 

6.0 

32  32.500 

1.74510 

533 

.002 

—.00274 

4652  1.83 

7.4603 

2390 

.029 

+.0082 

14 

15 

175 

5619 

5.8 

39  15.046 

2.21116 

327 

.000 

—.00606 

34  16  13.25 

6.8496 

3048 

.033 

+.0709 

14 

15 

176 

5658 

6.0 

16  44  17.644 

+  1.22618 

+    957 

—  .005 

+.00315 

55  37  55.19 

—  6.5113 

+   1724 

+  .028 

—.0066 

13 

16 

177 

5703 

6.3 

49  55.234 

2.45154 

331 

.001 

—.00071 

2556  0.35 

6.0480 

3434 

.035 

—  0109 

16 

18 

178 

5752 

5.5 

57  4.066 

+  1.09339 

959 

—  .005 

—.00688 

56  52  21.34 

5.4073 

+   1549 

.026 

+.0306 

20 

16 

179 

5780 

4.4 

58  50.852 

—  6.38651 

30769 

+  .560 

+.00448 

82  14  22.61 

5.2927 

—  8955 

.924 

—.0050 

N 

180 

5774 

5.9 

17  1  46.818 

+  8.09194 

521 

—  .004 

—.00092 

—  0  54  46.32 

5.0679 

+  4385 

.048 

—.0281 

22 

21 

181 

5786 

7.0 

17  323.583 

+  2.47551 

+    325 

—  .001 

—.00182 

2439  2.72 

—  4.9452 

+   3519 

+  .029 

—.0421 

13 

16 

182 

5801 

6. 

5  23.866 

1.149S8 

819 

.004 

—.00199 

55  55  38.88 

4.6969 

1647 

.022 

+.0358 

10 

10 

183 

5828 

3.2 

9  53.866 

2.46114 

333 

.001 

—.00285 

24  59  16.53 

4.4989 

3519 

.026 

—.1496 

N 

184 

5842 

4.8 

12  42.531 

2.21177 

311 

.001 

—.00299 

3314  9.32 

4.1053 

3171 

.020 

+.0035 

N 

185 

5911 

5.7 

23  25.523 

1.58640 

445 

—  .003 

—.00092 

48  21  56.97 

3.2017 

2297 

.014 

—.0149 

N 

186 

5941 

2.3 

17  29  7.956 

+  2.78178 

+    333 

—  .002 

+.00695 

1239  9.19 

—  2.9184 

+  4042 

+  .021 

—.2256 

N 

187 

6006 

4.9 

3741.102 

—  0.36028 

1077 

+  .004 

+.00077 

68  48  55.94 

1.6344 

—   513 

.027 

+.3151 

N 

188 

6122 

5.8 

57  21.255 

—  1.04540 

571 

+  .021 

+.00081 

72  059.20 

—  0.2393 

—  1522 

+  .016 

—.0078 

19 

21 

189 

6143 

3.7 

18  125.433 

+  2.84192 

181 

—  .003 

—.00540 

9  32  51.52 

+  0.2215 

+  4136 

—  .002 

+.0969 

N 

190 

6193 

6. 

8  54.682 

1.99699 

213 

—  .001 

—.00345 

38  44  22.70 

0.7839 

2902 

.002 

-1-.0043 

15 

13 

191 

6203 

5.3 

18  11  45.540 

+  1.86336 

+    204 

—  .002 

—.00170 

42  7  3.70 

+  1.0"09 

+  2707 

—  .002 

+.0024 

N 

192 

623-3 

6.5 

15  2.707 

2.31200 

192 

.001 

—.00198 

29  36  47.62 

1.3258 

3356 

.008 

+.0102 

12 

14 

193 

6246 

6.3 

17  0.418 

1.40442 

159 

.003 

—.00102 

51  17  36.32 

1.4358 

2030 

.002 

—  0510 

14 

D 

194 

6258 

6.0 

18  33.020 

1.40906 

136 

.003 

—.00336 

51  14  28.25 

1.6091 

2036 

.002 

—.0122 

10 

15 

195 

6300 

5.7 

24  24.823 

2.48523 

+    162 

.001 

—.00113 

23  47  3.76 

2.1449 

3593 

.013 

+.0137 

19 

19 

196 

6348 

5.5 

18  30  25.204 

+  1.03378 

—     86 

—  .004 

—.00171 

5657  1.74 

+  2.6403 

+   1481 

—  .007 

—.0137 

19 

10 

197 

6373 

6.5 

36  53.277 

0.72915 

—    385 

.004 

—.00151 

60  35  43.03 

3.2589 

1034 

.012 

+.0451 

10 

8 

198 

6387 

4.3 

40  16.953 

2.57899 

+    168 

.001 

—.00297 

202541.21 

3.1726 

3684 

.022 

—.3341 

N 

199 

6476 

6.0 

51  29.318 

1.58105 

29 

.002 

—.00742 

48  42  13.81 

4.3436 

2218 

.012 

—.1240 

13 

14 

200 

6491 

3.3 

54  16.088 

2.24219 

+    134 

.001 

—.00148 

3231  9.37 

4.7073 

3156 

.023 

+.0029 

N 

201 

6534 

5.7 

19  0  12.139 

+  2.28341 

+    142 

—  .000 

+.00417 

31  33  32.09 

+  5.1369 

+  3199 

—  .025 

—.0706 

9 

11 

202 

6579  Pr. 

6.0 

8  50.808 

1.55271 

—    2P6 

.002 

—.01785 

49  37  16.35 

6.5555 

2113 

.022 

+.6214 

30 

21 

203 

6599 

4.5 

12  1.813 

2.07950 

+    102 

.000 

—.00251 

37  54  43.78 

6.2136 

2854 

.026 

+.0140 

N 

204 

6656 

6.5 

19  59.521 

1.89539 

+     55 

.001 

+.00067 

43  842.92 

6.8221 

2569 

.024 

—.0362 

11 

13 

205 

6697 

3.9 

26  33.255 

1.51300 

—    248 

—  .002 

+  .00108 

51  27  51.02 

7.5200 

2021 

.024 

+.1250 

N 

206 

6740 

4.0 

19  34  26.409 

+  2.36776 

+    108 

+  .001 

—.00102 

29  51  58.67 

+  8.0787 

+   3128 

—  .042 

+.0468 

19 

20 

207 

6784 

5.0 

41  40.937 

2  27490 

+    201 

+  .001 

.00000 

33  26  16.24 

8.1687 

2959 

.039 

—.4397 

25 

27 

208 

6830 

6.0 

48  2B.257 

1.76583 

—    57 

—  .001 

—.00267 

47  36  35.63 

9.1315 

2249 

.030 

—.0070 

17 

20 

209 

6876 

5.7 

55  24.928 

1.88461 

+     28 

+  .000 

+.00112 

45  25  54.75 

9.6580 

2367 

.033 

—.0197 

12 

15 

210 

6915 

5.6 

20  1  43.209 

2.22602 

+    218 

+  .002 

—.02003 

35  37  44.60 

9.7303 

2730 

.044 

—.4269 

16 

20 

211 

6962 

4.2 

20  922.335 

+  1.88520 

+     39 

+  .001 

+.00067 

46  26  17.74 

+10.7147 

+  2277 

—  .036 

—.0141 

N 

212 

6998 

5.3 

13  51.062 

2.30267 

191 

+  .002 

—.00035 

34  35  35.01 

11.0686 

2754 

.052 

+.0108 

14 

18 

213 

7037 

6.0 

19  32.269 

0.29206 

—   3835 

—  .029 

+.00119 

68  28  49.72 

11.5024 

301 

.077 

+.0330 

17 

19 

214 

7094 

5.6 

28  2.298 

2.83728 

—    88 

+  .002 

+.00368 

12  36  0.59 

12.1104 

3257 

.092 

+  .0388 

20 

18 

215 

7140 

4.8 

32  56.283 

2.67653 

+     94 

+  .003 

+.00244 

20  45  48.92 

12.4224 

3016 

.081 

+.0112 

N 

216 

7138 

5.0 

2033  0.477 

+  3.07585 

—    440 

+  .001 

+.00449 

0  253.76 

+12.4130'+   3474 

—  .117 

—.0029 

20 

19 

217 

7178 

6.0 

35  59.559 

—  3.46948 

—  38815 

—  .551 

+.01342 

80  59  35.47 

12.6219 

—  3971 

.862 

+.0019 

25 

25 

218 

7176 

6.0 

37  38.525 

+  1.27913 

—    988 

—  .007 

—.00011 

60  313.32;  12.8991 

+   1386 

.039 

+.1673 

16  14 

219 

7213 

4.5 

42  32.435 

2.33413 

+    314 

+  .004 

—.00011 

36  155.751  13.0627 

2527 

.061 

+.0026 

N 

220 

7254 

5.6 

48  56.674 

2.09498 

+    309 

+  .004 

+.00258 

444232.10   13.4748 

2207 

.053 

—.0053 

13 

15 

MEAN   RIGHT   ASCENSIONS   OF   TWO   HUNDRED   AND   FIFTY-FOUR  STABS. 


19 


B.  A.  C. 

Xf 

a  1375.0 

da 

di 

fm 
dp 

(100)»  d«a 
«      df 

c 

1  1875.0 

dt 
dl 

ft 

(100)'  (Pi 

*' 

A 

a 

A 

t 

df 

g       dp 

221 

7297 

6.8 

H    111        s 

2055    8.805 

+  2.28855 

+         385 

+  .005 

+.01945 

3§  45  52'.58 

+14.0843 

+      2870 

—  .060 

+.2072 

12 

15 

222 

7326 

7.0        5911.374 

2.24274 

+         429 

+  .005 

—.00089 

41    8    4.30 

14.0826 

2259 

.059 

—.0476 

16 

17 

228 

7380 

4.1 

21    934.505 

+  2.99964 

—         275 

+  .004 

+.00231 

4  43  55.51 

14.6840 

+      2900 

.126 

—.0764 

N 

224 

7488 

6.0 

17    2.098 

—  0.54914 

—     13095   —  .195 

+.00906 

7629   8.40 

15.2049 

—       679 

.210 

+.0105 

16 

18 

225 

7509 

7.3 

28  59.097 

—  0.17576 

—     10728 

—  .162 

—.00016 

75  51  14.56 

15.8451 

—       225 

.160 

—.0107 

14 

14 

226 

7522 

5.8 

21  32  16.307 

+  8.00552 

—         226 

+  .005 

+.00651 

5  12  30.91 

+16.0611 

+     2570 

—  .185 

+.0308 

19 

19 

227 

7561 

2.5 

38    2.800 

2.94569 

—           54 

4-  .006 

+.00058 

918    9.89 

16.3381 

2424 

.129 

+.0093 

N 

228 

7597 

5.0 

41  32.269 

0.75768 

—       4063 

—  .052 

—.01174 

71  44  50.27 

16.4609 

547 

.065 

—.0433 

21 

22 

229 

7610 

6.7 

44  48.584 

1.07425 

—       2310 

—  .026 

—.00131 

69  34  17.31 

16  6339 

799 

.050 

—.0813 

19 

19 

230 

7641 

5.6 

50  50.663 

2,92387 

+           78 

+  .006 

—.00329 

1129    0.62 

16.9434 

2202 

.180 

—.0098 

23 

18 

231 

B.D.59.2444 

7.4 

21  55  23.038 

+  1.87498 

+         629 

+  .009 

—.01368 

59  41  56.30 

+17.1664 

+      1380 

—  .048 

+.0044 

3 

3 

232 

7685 

6.0       5821.651 

3.08735 

—         444  :  +  .006 

—.00274 

—  1  30  36.43 

17.2535 

2203 

.154 

—.0418 

22 

19 

233 

7712 

6.0  22    1  58.058 

+  2.81316 

+         482   +  .008 

—.00505 

21    542.23 

17.3875 

+      1942 

.119 

—.0655 

17 

18 

234 

7732  Pr. 

7.5 

2  36.064 

—  1.82887   —     41949   —1.214 

—.07011 

82  16    2.88 

17.4382 

—     1430 

.551 

—.0419 

14 

20 

235 

•7760 

6.2 

7  47.510 

+  1.37936 

—       1001 

—  .010 

—.00990 

69  30  55.01 

17.7058 

+       863 

.042 

+.0075 

19 

22 

236 

7796 

5.1 

22  15  21.940 

+  2.95157 

+         186 

+  .008 

+.00006 

11  34  33.48 

+18.0168 

+     1820 

—  .189 

+  .0166 

N 

237 

7820 

5.0 

19  27.071 

2.42089 

1502 

.015 

—.00164 

48  50  35.16 

18.1416 

1421 

.080 

—.0183 

21 

24 

23S 

7843 

5.5 

24  18.856 

2.73673 

1053 

.011 

+.00236 

31  55  59.80 

18.3258 

1541 

.118 

—.0058 

N 

239 

7915 

6.0 

35  53.019 

2.67372 

1478 

.014 

—.00202 

89  34  22.44 

18.7157 

1318 

.107 

—.0029 

12 

14 

240 

7932 

5.1 

38  81.178 

2.66317 

1578 

.015 

—.00220 

41    949.01 

18.8149 

1270 

.108 

+.0148 

N 

241 

7962 

6. 

22  44  43.689 

4-  2.69296 

+       1680 

+  .015 

—.00053 

41  17  30.61 

+18.9762 

+      1185 

—  .110 

—.0061 

15 

18 

242 

7978 

6.7 

47  28.894 

2.72890 

1638 

.015 

—.00087 

39  30  12.46 

19.0465 

1156 

.114 

—.0121 

9 

12 

243 

8024 

6.5 

56  13.899 

2.51745 

2636 

.027 

—.00138 

5626    &21 

19.2766 

925 

.092 

—.0064 

14 

12 

244 

8052 

4.5 

23    1    1.528 

2.91336 

1074 

.011 

—.00171 

244738.07 

19.3660 

997 

.140 

—.0279 

20 

21 

245 

8078 

5.2 

5  25.566 

3.02596 

291 

.009 

—.00173 

8    22952 

19.5022 

957 

.157 

+.0139 

N 

246 

8122 

6.8 

23  13  22.079 

+  2.17376 

4-       3954 

+  .068 

—.01451 

73    021.60 

+19.6084 

+       552 

—  .063 

—.0321 

15 

15 

247 

8195 

6. 

25    8.838         2.93427 

2146 

.018 

+.02341 

38  32  58.87 

19.7497 

568 

.144 

—.0731 

25 

27 

248 

8229 

4.3 

33    0.619         2.92399 

2500 

.020 

+.00139 

42  34  34.12 

19.9075 

434 

.144 

+.0026 

N 

249 

8892 

6.5 

37    0.710 

2.89691 

3494 

.031 

—.00112 

52  27  33.04 

19.9492 

837 

.139 

—.0042 

10 

10 

250 

8284 

6.0 

43  19.993 

3.02431 

1642 

.014 

+.00403 

28    847.79 

20.0206 

235 

.159 

+.0194 

21 

19 

251 

8317 

7.5 

23  49  18.287 

+  2.97533 

+       4392 

+  .041 

—.00191 

56  42  59.50 

+20.0216 

+       116 

—  .151 

—.0108 

13 

14 

252 

8324 

4.8 

51  24.502         3.04540 

1476 

.013 

—.00407 

24  26  47.38 

20.0143 

80 

.163 

—.0258 

N 

253 

8356 

7.0 

56  21.235         2.90393 

19789 

.714 

—.01147 

82  16  38.46 

20.0355 

—        19 

.141 

—.0162 

15 

15 

254 

8365 

6.5 

23  58  39.339 

3.07383 

120 

.010 

+.00142 

—  1  11  50.15 

20.0000 

—        60 

.167 

—.0539 

23 

24 

hMaj. 


